The last time America turned inward was after the first world war and the consequences were calamitous. You do not have to foresee anything so dire to fear Mr Trump’s new nationalism today. At home it tends to produce intolerance and to feed doubts about the virtue and loyalties of minorities. It is no accident that allegations of anti-Semitism have infected the bloodstream of American politics for the first time in decades.

Read all about it.

"If somebody comes along who is charismatic and honest this country is in real trouble because of the frustration, disillusionment, the justified anger and the absence of any coherent response. What are people supposed to think if someone says ‘I have got an answer, we have an enemy’? There it was the Jews. Here it will be the illegal immigrants and the blacks. We will be told that white males are a persecuted minority. We will be told we have to defend ourselves and the honor of the nation. Military force will be exalted. People will be beaten up. This could become an overwhelming force. And if it happens it will be more dangerous than Germany. The United States is the world power. Germany was powerful but had more powerful antagonists. I don’t think all this is very far away. If the polls are accurate it is not the Republicans but the right-wing Republicans, the crazed Republicans, who will sweep the next election."

“At the beginning, people loved going to the show of Donald Trump. You didn’t know what he was going to do or say. It was the same with Mussolini. He would insult people in a humorous way. You didn’t know what gestures he would make.”

"There is only one way left to blunt the yearning for fascism coalescing around Trump. It is to build, as fast as possible, movements or parties that declare war on corporate power, engage in sustained acts of civil disobedience and seek to reintegrate the disenfranchised—the “losers”—back into the economy and political life of the country. This movement will never come out of the Democratic Party. If Clinton prevails in the general election Trump may disappear, but the fascist sentiments will expand."

Amid a migrant crisis, sluggish economic growth and growing disillusionment with the European Union, right-wing parties in a growing number of European countries have made electoral gains. The right-wing parties included below range across a wide policy spectrum, from populist and nationalist to far-right neofascist.

We live in an incredibly dangerous moment. It is not hyperbolic to say Europe is going through political changes similar to those of the post-Depression 1930s, when fascism was on the rise for the first time.

Brexit is a big victory for neo-fascist forces throughout the West — actual neo-fascist parties and politicians. And there is no sign that the far-right will decline anytime soon.

Demagogues like Trump in the U.S., or Marine Le Pen in France, or Geert Wilders in the Netherlands, may lose the upcoming election, but there will be many more elections after that, and the far-right will only continue to gain strength — unless it faces a real challenge.

"Financial meltdown, environmental disaster and even the rise of Donald Trump – neoliberalism has played its part in them all. Why has the left failed to come up with an alternative?"

London Mayor Boris Johnson is seen appearing on BBC Television in London on March 6 2016. Donald Trump's nationalist, populist message is echoed in Europe by Boris Johnson, Marine Le Pen, Viktor Orban, Geert Wilders, Robert Fico, Recep Tayyip Erdoğan and Vladimir Putin.